private static bool isValidDOCXFile(byte[] bytFile, String FileContentType)
{
byte[] chkByteDocx = { 80, 75, 3, 4 }; // Magic Number For Docx
bool isvalid = false;
DOCFileExtension docfileExtn = DOCFileExtension.none;
if (FileContentType.Contains("application/vnd.openxmlformats-officedocument.wordprocessingml.document"))
{
docfileExtn = DOCFileExtension.DOCX;
}
if (docfileExtn == DOCFileExtension.DOCX)
{
if (bytFile.Length >= 4)
{
int j = 0;
for (Int32 i = 0; i <= 3; i++)
{
if (bytFile[i] == chkByteDocx[i])
{
j = j + 1;
if (j == 3)
{
isvalid = true;
}
}
}
}
}
return(isvalid);
}
private static bool isValidDOCFile(byte[] bytFile, String FileContentType)
{
byte[] chkByteDoc = { 208, 207, 17, 224 }; // Magic Number For Doc
bool isvalid = false;
DOCFileExtension docfileExtn = DOCFileExtension.none;
if (FileContentType.Contains("application/msword"))
{
docfileExtn = DOCFileExtension.DOC;
}
if (docfileExtn == DOCFileExtension.DOC)
{
if (bytFile.Length >= 4)
{
int j = 0;
for (Int32 i = 0; i <= 3; i++)
{
if (bytFile[i] == chkByteDoc[i])
{
j = j + 1;
if (j == 3)
{
isvalid = true;
}
}
}
}
}
return(isvalid);
}
